- First of all we can say that the NFT in ArtSquare.io is the unique Digital Twin of the artwork: this Non Fungible TOken is binded to the artwork because of all its information encrypted. Secondly, in the analogical world, you must have provenance, condition reports, videos and photos in order to prove your property of the artwork and its value. In the digital world, ownership can be proved by simply having the NFT stored in your wallet.